noun
wooden hammer; wooden mallet
A hammer with a wooden head, used in woodworking, carving, or striking chisels.
彫刻には木槌を使います。
I use a wooden mallet for carving.
大工さんが木槌で叩いている。
The carpenter is hitting it with a wooden hammer.
金槌 is a metal hammer, while 木槌 is specifically a wooden mallet or hammer.
Compound of 木 (ki, 'wood') and 槌 (tsuchi, 'hammer'), with rendaku voicing of つち to づち.